51 some very useful subprogram has a very good suggestion

单片机实现CAN总线，SJA1000的驱动程序-Realize single-chip CAN bus, SJA1000 driver

利用8051单片机驱动H6152射频读写模块，实现对非接触式射频卡的读写操作。-8051 drivers to use radio frequency reader module H6152, to realize non-contact RF card read and write operations.

电子设计工程师手册第五版，模拟部分，详细介绍模拟电路基础-Electronics Design Engineer Manual, Fifth Edition, analog section, details of the basis of analog circuits

单片机嵌入式入门教程 汇编指令实验 扩展实验 A/D转换实验

MPLAB IDE环境下软仿真基础教程。-MPLAB IDE environment, simulation-based software tutorials.

使用单片机系统制作波形发生器，能产生正弦波、方波、三角波-The production of single-chip microcomputer system using the waveform generator, can generate sine wave, square wave, triangle wave

89s51单片机控制的键盘和led系统，键盘送数led从低到高位的显示-89s51 MCU control of the keyboard and led system, the keyboard to send a few led from low to high Show

一个单片机仿真程序，并带有仿真文件，线路调试程序，及原理图。-a microcontroller simulation program, and with simulation, circuit debugging procedures and schematics.

此为一个详细的程序源代码 由单片机PIC16F873检测电平，并送至1802显示，包含各种操作功能-This is a detailed source code from the single-chip PIC16F873 detection level, and to the 1802 show, including a variety of operating functions

一个基于AT89C51SND1C的硬盘MP3（原理图+源代码+实物照片） -AT89C51SND1C a hard disk-based MP3 (diagram source code-kind photos)